fix lint and tint icon color correctly when cant send any more message

Signed-off-by: alperozturk96 <alper_ozturk@proton.me>

Author: alperozturk96

app/src/main/java/com/nextcloud/client/assistant/AssistantScreen.kt

@@ -394,7 +394,13 @@ private fun InputBar(
                     Icon(
                         painter = painterResource(id = R.drawable.ic_send),
                         contentDescription = stringResource(R.string.assistant_screen_send_message),
-                        tint = MaterialTheme.colorScheme.primary
+                        tint = if (chatUIState.canSend()) {
+                            MaterialTheme.colorScheme.primary
+                        } else {
+                            colorResource(
+                                R.color.disabled_text
+                            )
+                        }
                     )
                 }
             }

app/src/main/res/values/strings.xml

@@ -66,7 +66,6 @@
     <string name="assistant_screen_delete_task_alert_dialog_title">Delete task</string>
     <string name="assistant_screen_delete_task_alert_dialog_description">Are you sure you want to delete this task?</string>
     <string name="assistant_screen_task_more_actions_bottom_sheet_delete_action">Delete Task</string>
-    <string name="assistant_screen_select_task_type_label">Choose an option</string>
     <string name="assistant_screen_task_create_success_message">Task created</string>
     <string name="assistant_screen_task_create_fail_message">An error occurred while creating the task</string>
     <string name="assistant_screen_task_delete_success_message">Task deleted</string>